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Finding the Fourth Proportional to 17,115.10, 25,672.19 and 12,962.99

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Solution

The fourth proportional to 17,115.10, 25,672.19 and 12,962.99 is: 19,444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.10 : 25,672.19 = 12,962.99 : x
  2. Step 2: Convert to fraction form
    17,115.10/25,672.19 = 12,962.99/x
  3. Step 3: Cross multiply
    17,115.10x = 25,672.19 × 12,962.99
  4. Step 4: Simplify right side
    17,115.10x = 332,788,270.12
  5. Step 5: Solve for x
    x = 332,788,270.12/17,115.10
  6. Step 6: Final answer
    x = 19,444.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.